9998143704 has 96 divisors (see below), whose sum is σ = 28133632800. Its totient is φ = 3203827200.

The previous prime is 9998143697. The next prime is 9998143709. The reversal of 9998143704 is 4073418999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9998143709) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 476229 + ... + 496779.

It is an arithmetic number, because the mean of its divisors is an integer number (293058675).

Almost surely, 2^9998143704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9998143704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14066816400).

9998143704 is an abundant number, since it is smaller than the sum of its proper divisors (18135489096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9998143704 is a wasteful number, since it uses less digits than its factorization.

9998143704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20825 (or 20818 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 9998143704 is about 99990.7180892307. The cubic root of 9998143704 is about 2154.3013728324.

The spelling of 9998143704 in words is "nine billion, nine hundred ninety-eight million, one hundred forty-three thousand, seven hundred four".